Dynacord DPA 4260 用户手册

Technical Specifications: DPA 4245, DPA 4260

Amplifier at rated conditions, both channels driven, direct outputs with 8

loads, isolated outputs with rated load and voltage,

unless otherwise specified.

DPA4245

DPA4260

DUAL MODE

Direct Output

Isolated Outputs

Direct Output

Isolated Outputs

Output Definition

100V

70V

25V

100V

70V

25V

Load impedance or rated output voltage
Rated Load Impedance

28.5

1.8

9.8

1.25

isolated outputs only
Maximum Midband Output Power

240W

450W

410W

400W

390W

330W

600W

590W

580W

570W

THD=1%, 1kHz
Maximum Midband Output Voltage

44V

42.4V

108V

74.8V

26.5V

51.3V

49V

109.5V 75.4V

26.7V

THD=1%, 1kHz, RMS, rated load
Rated Output Power

230W

350W

300W

500W

THD <0.2%, 45Hz ... 20kHz,
>10min. according IEC 268-3
Rated Output Voltage

42.9V

37.4V

100V

70V

25V

49V

44.7V

100V

70V

25V

THD<0.2%, 45Hz ... 20kHz
Maximum RMS Voltage Swing

44V

125 V

87V

31V

52V

121V

88V

32V

THD=1%, 1kHz, no load connected
Frequency Response, -3dB, ref.1kHz

45 Hz .... 30kHz

45 Hz.... 22kHz

45 Hz .... 30kHz

45 Hz .... 22kHz

LO-Cut-Filter: 18dB/octave, 45Hz
HI-Cut-Filter: 12dB/octave, 30kHz
Voltage Gain

34 dB

42 dB

39 dB

30 dB

35 dB

42 dB

39 dB

30 dB

at 1 kHz
Input Sensitivity and Impedance

0dBu ( 775mV) / 20 kOhm

at rated condition
Slew Rate

25 V/µs

30 V/µs

Power Bandwith

45Hz ...50kHz

45Hz .... 25kHz

45Hz .... 50kHz

45Hz .... 25 kHz

THD=1%, ref. 1kHz, half power @ rated
load impedance
THD at rated output power,

< 0.05%

< 0.1% < 0.2% < 0.3% < 0.05 %

< 0.1% < 0.2% < 0.3%

MBW=80kHz, 1 kHz
IMD-SMPTE

< 0.08%

< 0.1% < 0.3% < 0.5% < 0.08%

< 0.1% < 0.3% < 0.5%

60 Hz, 7 kHz
DIM30

< 0.03%

< 0.2% < 0.2% < 0.2% < 0.03 %

< 0.2% < 0.3 % < 0.3%

3.15 kHz, 15 kHz
Crosstalk

< -80dB

ref. 1kHz, at rated output power
Input Impedance

20 kOhm

20Hz ... 20 kHz, balanced
Damping Factor

> 300 / > 200

at 100Hz / 1kHz, direct outputs only
Insertion Loss

0.7 dB

0.8 dB

0.9 dB

0.7 dB

0.8 dB

1.1 dB

isolated outputs only
Signal to Noise Ratio

> 100 dB

Rated output voltage to noise, A-weighted